Call the Grammar Police
According to an article in today's Boston Globe, Somerville has its own resident Grammar Vandal, a vigilante who takes it upon herself to correct public grammar errors.
This young lady gets particularly ruffled over missing punctuation in signage, not just apostrophes and hyphens, but commas and periods, too. While I also cringe over the ubiquitous "its" vs. "it's," and the even more horrifying apostrophe-"s" used as blanket remedy for puzzling pluralization scenarios (acronyms like "CDs" seem to cause particular confusion, as well as words ending in vowels), I pretty much tune out all other niceties of usage when it comes to advertising copy. But not the Grammar Vandal: she really means it.
You go (comma) girl!